Halfling Illusion and Unique Faction Opportunities?

[Squire]

Greetings all! Having recently returned to P99 after a long hiatus I've decided to roll a new, evil character. While combing through the priest sub-forum and using the search function to determine the best race/class/deity combo for me and battling through several "what is the best race" threads, I found an interesting tidbit of information within the Symbol of Innorruk quest line. The Skinned Halfling Mask.

http://wiki.project1999.com/Skinned_Halfling_Face_Mask

The quest is allegedly repeatable, providing evil Clerics and Shamans with single dose halfling illusion clickies, which while might be a fun novelty, presents some interesting opportunities for raising faction and completing quests that one might not otherwise be able to do without puppet strings, other illusions, the help of an enchanter, etc.

My questions to the community are as follows

1. What noteworthy factions would you (as a troll shaman, or dark elf cleric) be most advantageous utilizing the halfling illusion?

2. what quests would it allow one to accomplish.. the halfling raider WC port skullcap, testament of vaner, and Soulfire come to mind, anything else?

3. While clearly a non-innoruuk worshiping preist cannot use the innoruuk symbol, Could a Cazic thule worshiper do enough of the quest to obtain this mask?

4. Is this actually repeatable on p99?

Thank you all in advance for your suggestions and discussion!